Dataset statistics
| Number of variables | 13 |
|---|---|
| Number of observations | 6497 |
| Missing cells | 0 |
| Missing cells (%) | 0.0% |
| Duplicate rows | 1177 |
| Duplicate rows (%) | 18.1% |
| Total size in memory | 660.0 KiB |
| Average record size in memory | 104.0 B |
Variable types
| NUM | 11 |
|---|---|
| CAT | 2 |
| Dataset has 1177 (18.1%) duplicate rows | Duplicates |
citric acid has 151 (2.3%) zeros | Zeros |
Reproduction
| Analysis started | 2020-11-13 07:41:20.158525 |
|---|---|
| Analysis finished | 2020-11-13 07:41:39.486287 |
| Duration | 19.33 seconds |
| Software version | pandas-profiling v2.9.0 |
| Download configuration | config.yaml |
wine_type
Categorical
| Distinct | 2 |
|---|---|
| Distinct (%) | < 0.1% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Memory size | 50.8 KiB |
| white wine | |
|---|---|
| red wine |
| Value | Count | Frequency (%) | |
| white wine | 4898 | 75.4% | |
| red wine | 1599 | 24.6% |
Unique
| Unique | 0 ? |
|---|---|
| Unique (%) | 0.0% |
Length
| Max length | 10 |
|---|---|
| Median length | 10 |
| Mean length | 9.507772818 |
| Min length | 8 |
| Distinct | 89 |
|---|---|
| Distinct (%) | 1.4% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 0.3186332153 |
|---|---|
| Minimum | 0 |
| Maximum | 1.66 |
| Zeros | 151 |
| Zeros (%) | 2.3% |
| Memory size | 50.8 KiB |
Quantile statistics
| Minimum | 0 |
|---|---|
| 5-th percentile | 0.05 |
| Q1 | 0.25 |
| median | 0.31 |
| Q3 | 0.39 |
| 95-th percentile | 0.56 |
| Maximum | 1.66 |
| Range | 1.66 |
| Interquartile range (IQR) | 0.14 |
Descriptive statistics
| Standard deviation | 0.1453178649 |
|---|---|
| Coefficient of variation (CV) | 0.4560662791 |
| Kurtosis | 2.397239216 |
| Mean | 0.3186332153 |
| Median Absolute Deviation (MAD) | 0.07 |
| Skewness | 0.4717306725 |
| Sum | 2070.16 |
| Variance | 0.02111728186 |
| Monotocity | Not monotonic |
| Value | Count | Frequency (%) | |
| 0.3 | 337 | 5.2% | |
| 0.28 | 301 | 4.6% | |
| 0.32 | 289 | 4.4% | |
| 0.49 | 283 | 4.4% | |
| 0.26 | 257 | 4.0% | |
| 0.34 | 249 | 3.8% | |
| 0.29 | 244 | 3.8% | |
| 0.27 | 236 | 3.6% | |
| 0.24 | 232 | 3.6% | |
| 0.31 | 230 | 3.5% | |
| Other values (79) | 3839 | 59.1% |
| Value | Count | Frequency (%) | |
| 0 | 151 | 2.3% | |
| 0.01 | 40 | 0.6% | |
| 0.02 | 56 | 0.9% | |
| 0.03 | 32 | 0.5% | |
| 0.04 | 41 | 0.6% |
| Value | Count | Frequency (%) | |
| 1.66 | 1 | < 0.1% | |
| 1.23 | 1 | < 0.1% | |
| 1 | 6 | 0.1% | |
| 0.99 | 1 | < 0.1% | |
| 0.91 | 2 | < 0.1% |
fixed acidity
Real number (ℝ≥0)
| Distinct | 106 |
|---|---|
| Distinct (%) | 1.6% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 7.215307065 |
|---|---|
| Minimum | 3.8 |
| Maximum | 15.9 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 50.8 KiB |
Quantile statistics
| Minimum | 3.8 |
|---|---|
| 5-th percentile | 5.7 |
| Q1 | 6.4 |
| median | 7 |
| Q3 | 7.7 |
| 95-th percentile | 9.8 |
| Maximum | 15.9 |
| Range | 12.1 |
| Interquartile range (IQR) | 1.3 |
Descriptive statistics
| Standard deviation | 1.296433758 |
|---|---|
| Coefficient of variation (CV) | 0.1796782516 |
| Kurtosis | 5.061160665 |
| Mean | 7.215307065 |
| Median Absolute Deviation (MAD) | 0.6 |
| Skewness | 1.723289647 |
| Sum | 46877.85 |
| Variance | 1.680740488 |
| Monotocity | Not monotonic |
| Value | Count | Frequency (%) | |
| 6.8 | 354 | 5.4% | |
| 6.6 | 327 | 5.0% | |
| 6.4 | 305 | 4.7% | |
| 7 | 282 | 4.3% | |
| 6.9 | 279 | 4.3% | |
| 7.2 | 273 | 4.2% | |
| 6.7 | 264 | 4.1% | |
| 7.1 | 257 | 4.0% | |
| 6.5 | 242 | 3.7% | |
| 7.4 | 238 | 3.7% | |
| Other values (96) | 3676 | 56.6% |
| Value | Count | Frequency (%) | |
| 3.8 | 1 | < 0.1% | |
| 3.9 | 1 | < 0.1% | |
| 4.2 | 2 | < 0.1% | |
| 4.4 | 3 | < 0.1% | |
| 4.5 | 1 | < 0.1% |
| Value | Count | Frequency (%) | |
| 15.9 | 1 | < 0.1% | |
| 15.6 | 2 | < 0.1% | |
| 15.5 | 2 | < 0.1% | |
| 15 | 2 | < 0.1% | |
| 14.3 | 1 | < 0.1% |
volatile acidity
Real number (ℝ≥0)
| Distinct | 187 |
|---|---|
| Distinct (%) | 2.9% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 0.3396659997 |
|---|---|
| Minimum | 0.08 |
| Maximum | 1.58 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 50.8 KiB |
Quantile statistics
| Minimum | 0.08 |
|---|---|
| 5-th percentile | 0.16 |
| Q1 | 0.23 |
| median | 0.29 |
| Q3 | 0.4 |
| 95-th percentile | 0.67 |
| Maximum | 1.58 |
| Range | 1.5 |
| Interquartile range (IQR) | 0.17 |
Descriptive statistics
| Standard deviation | 0.1646364741 |
|---|---|
| Coefficient of variation (CV) | 0.4847010717 |
| Kurtosis | 2.825372417 |
| Mean | 0.3396659997 |
| Median Absolute Deviation (MAD) | 0.08 |
| Skewness | 1.495096542 |
| Sum | 2206.81 |
| Variance | 0.0271051686 |
| Monotocity | Not monotonic |
| Value | Count | Frequency (%) | |
| 0.28 | 286 | 4.4% | |
| 0.24 | 266 | 4.1% | |
| 0.26 | 256 | 3.9% | |
| 0.25 | 238 | 3.7% | |
| 0.22 | 235 | 3.6% | |
| 0.27 | 232 | 3.6% | |
| 0.23 | 221 | 3.4% | |
| 0.2 | 217 | 3.3% | |
| 0.3 | 214 | 3.3% | |
| 0.32 | 205 | 3.2% | |
| Other values (177) | 4127 | 63.5% |
| Value | Count | Frequency (%) | |
| 0.08 | 4 | 0.1% | |
| 0.085 | 1 | < 0.1% | |
| 0.09 | 1 | < 0.1% | |
| 0.1 | 6 | 0.1% | |
| 0.105 | 6 | 0.1% |
| Value | Count | Frequency (%) | |
| 1.58 | 1 | < 0.1% | |
| 1.33 | 2 | < 0.1% | |
| 1.24 | 1 | < 0.1% | |
| 1.185 | 1 | < 0.1% | |
| 1.18 | 1 | < 0.1% |
residual sugar
Real number (ℝ≥0)
| Distinct | 316 |
|---|---|
| Distinct (%) | 4.9% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 5.443235339 |
|---|---|
| Minimum | 0.6 |
| Maximum | 65.8 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 50.8 KiB |
Quantile statistics
| Minimum | 0.6 |
|---|---|
| 5-th percentile | 1.2 |
| Q1 | 1.8 |
| median | 3 |
| Q3 | 8.1 |
| 95-th percentile | 15 |
| Maximum | 65.8 |
| Range | 65.2 |
| Interquartile range (IQR) | 6.3 |
Descriptive statistics
| Standard deviation | 4.757803743 |
|---|---|
| Coefficient of variation (CV) | 0.8740764355 |
| Kurtosis | 4.359271948 |
| Mean | 5.443235339 |
| Median Absolute Deviation (MAD) | 1.7 |
| Skewness | 1.435404263 |
| Sum | 35364.7 |
| Variance | 22.63669646 |
| Monotocity | Not monotonic |
| Value | Count | Frequency (%) | |
| 2 | 235 | 3.6% | |
| 1.8 | 228 | 3.5% | |
| 1.6 | 223 | 3.4% | |
| 1.4 | 219 | 3.4% | |
| 1.2 | 195 | 3.0% | |
| 2.2 | 187 | 2.9% | |
| 2.1 | 179 | 2.8% | |
| 1.9 | 176 | 2.7% | |
| 1.7 | 175 | 2.7% | |
| 1.5 | 172 | 2.6% | |
| Other values (306) | 4508 | 69.4% |
| Value | Count | Frequency (%) | |
| 0.6 | 2 | < 0.1% | |
| 0.7 | 7 | 0.1% | |
| 0.8 | 25 | 0.4% | |
| 0.9 | 41 | 0.6% | |
| 0.95 | 4 | 0.1% |
| Value | Count | Frequency (%) | |
| 65.8 | 1 | < 0.1% | |
| 31.6 | 2 | < 0.1% | |
| 26.05 | 2 | < 0.1% | |
| 23.5 | 1 | < 0.1% | |
| 22.6 | 1 | < 0.1% |
chlorides
Real number (ℝ≥0)
| Distinct | 214 |
|---|---|
| Distinct (%) | 3.3% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 0.05603386178 |
|---|---|
| Minimum | 0.009 |
| Maximum | 0.611 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 50.8 KiB |
Quantile statistics
| Minimum | 0.009 |
|---|---|
| 5-th percentile | 0.028 |
| Q1 | 0.038 |
| median | 0.047 |
| Q3 | 0.065 |
| 95-th percentile | 0.102 |
| Maximum | 0.611 |
| Range | 0.602 |
| Interquartile range (IQR) | 0.027 |
Descriptive statistics
| Standard deviation | 0.03503360137 |
|---|---|
| Coefficient of variation (CV) | 0.6252219686 |
| Kurtosis | 50.89805146 |
| Mean | 0.05603386178 |
| Median Absolute Deviation (MAD) | 0.011 |
| Skewness | 5.399827732 |
| Sum | 364.052 |
| Variance | 0.001227353225 |
| Monotocity | Not monotonic |
| Value | Count | Frequency (%) | |
| 0.044 | 206 | 3.2% | |
| 0.036 | 200 | 3.1% | |
| 0.042 | 187 | 2.9% | |
| 0.046 | 185 | 2.8% | |
| 0.048 | 182 | 2.8% | |
| 0.04 | 182 | 2.8% | |
| 0.05 | 182 | 2.8% | |
| 0.047 | 175 | 2.7% | |
| 0.045 | 174 | 2.7% | |
| 0.038 | 169 | 2.6% | |
| Other values (204) | 4655 | 71.6% |
| Value | Count | Frequency (%) | |
| 0.009 | 1 | < 0.1% | |
| 0.012 | 3 | < 0.1% | |
| 0.013 | 1 | < 0.1% | |
| 0.014 | 4 | 0.1% | |
| 0.015 | 4 | 0.1% |
| Value | Count | Frequency (%) | |
| 0.611 | 1 | < 0.1% | |
| 0.61 | 1 | < 0.1% | |
| 0.467 | 1 | < 0.1% | |
| 0.464 | 1 | < 0.1% | |
| 0.422 | 1 | < 0.1% |
free sulfur dioxide
Real number (ℝ≥0)
| Distinct | 135 |
|---|---|
| Distinct (%) | 2.1% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 30.52531938 |
|---|---|
| Minimum | 1 |
| Maximum | 289 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 50.8 KiB |
Quantile statistics
| Minimum | 1 |
|---|---|
| 5-th percentile | 6 |
| Q1 | 17 |
| median | 29 |
| Q3 | 41 |
| 95-th percentile | 61 |
| Maximum | 289 |
| Range | 288 |
| Interquartile range (IQR) | 24 |
Descriptive statistics
| Standard deviation | 17.74939977 |
|---|---|
| Coefficient of variation (CV) | 0.5814648342 |
| Kurtosis | 7.906238067 |
| Mean | 30.52531938 |
| Median Absolute Deviation (MAD) | 12 |
| Skewness | 1.220066074 |
| Sum | 198323 |
| Variance | 315.0411923 |
| Monotocity | Not monotonic |
| Value | Count | Frequency (%) | |
| 29 | 183 | 2.8% | |
| 6 | 170 | 2.6% | |
| 26 | 161 | 2.5% | |
| 15 | 157 | 2.4% | |
| 24 | 152 | 2.3% | |
| 31 | 152 | 2.3% | |
| 17 | 149 | 2.3% | |
| 34 | 146 | 2.2% | |
| 35 | 144 | 2.2% | |
| 23 | 142 | 2.2% | |
| Other values (125) | 4941 | 76.1% |
| Value | Count | Frequency (%) | |
| 1 | 3 | < 0.1% | |
| 2 | 2 | < 0.1% | |
| 3 | 59 | 0.9% | |
| 4 | 52 | 0.8% | |
| 5 | 129 | 2.0% |
| Value | Count | Frequency (%) | |
| 289 | 1 | < 0.1% | |
| 146.5 | 1 | < 0.1% | |
| 138.5 | 1 | < 0.1% | |
| 131 | 1 | < 0.1% | |
| 128 | 1 | < 0.1% |
total sulfur dioxide
Real number (ℝ≥0)
| Distinct | 276 |
|---|---|
| Distinct (%) | 4.2% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 115.7445744 |
|---|---|
| Minimum | 6 |
| Maximum | 440 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 50.8 KiB |
Quantile statistics
| Minimum | 6 |
|---|---|
| 5-th percentile | 19 |
| Q1 | 77 |
| median | 118 |
| Q3 | 156 |
| 95-th percentile | 206 |
| Maximum | 440 |
| Range | 434 |
| Interquartile range (IQR) | 79 |
Descriptive statistics
| Standard deviation | 56.52185452 |
|---|---|
| Coefficient of variation (CV) | 0.488332648 |
| Kurtosis | -0.3716636549 |
| Mean | 115.7445744 |
| Median Absolute Deviation (MAD) | 39 |
| Skewness | -0.001177478234 |
| Sum | 751992.5 |
| Variance | 3194.720039 |
| Monotocity | Not monotonic |
| Value | Count | Frequency (%) | |
| 111 | 72 | 1.1% | |
| 113 | 65 | 1.0% | |
| 122 | 57 | 0.9% | |
| 117 | 57 | 0.9% | |
| 128 | 56 | 0.9% | |
| 124 | 56 | 0.9% | |
| 98 | 56 | 0.9% | |
| 114 | 56 | 0.9% | |
| 118 | 55 | 0.8% | |
| 150 | 54 | 0.8% | |
| Other values (266) | 5913 | 91.0% |
| Value | Count | Frequency (%) | |
| 6 | 3 | < 0.1% | |
| 7 | 4 | 0.1% | |
| 8 | 14 | 0.2% | |
| 9 | 15 | 0.2% | |
| 10 | 28 | 0.4% |
| Value | Count | Frequency (%) | |
| 440 | 1 | < 0.1% | |
| 366.5 | 1 | < 0.1% | |
| 344 | 1 | < 0.1% | |
| 313 | 1 | < 0.1% | |
| 307.5 | 1 | < 0.1% |
density
Real number (ℝ≥0)
| Distinct | 998 |
|---|---|
| Distinct (%) | 15.4% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 0.9946966338 |
|---|---|
| Minimum | 0.98711 |
| Maximum | 1.03898 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 50.8 KiB |
Quantile statistics
| Minimum | 0.98711 |
|---|---|
| 5-th percentile | 0.9899 |
| Q1 | 0.99234 |
| median | 0.99489 |
| Q3 | 0.99699 |
| 95-th percentile | 0.999392 |
| Maximum | 1.03898 |
| Range | 0.05187 |
| Interquartile range (IQR) | 0.00465 |
Descriptive statistics
| Standard deviation | 0.002998673004 |
|---|---|
| Coefficient of variation (CV) | 0.003014660854 |
| Kurtosis | 6.606066991 |
| Mean | 0.9946966338 |
| Median Absolute Deviation (MAD) | 0.00231 |
| Skewness | 0.5036017301 |
| Sum | 6462.54403 |
| Variance | 8.992039783e-06 |
| Monotocity | Not monotonic |
| Value | Count | Frequency (%) | |
| 0.9972 | 69 | 1.1% | |
| 0.9976 | 69 | 1.1% | |
| 0.992 | 64 | 1.0% | |
| 0.998 | 64 | 1.0% | |
| 0.9928 | 63 | 1.0% | |
| 0.9986 | 61 | 0.9% | |
| 0.9966 | 59 | 0.9% | |
| 0.9962 | 59 | 0.9% | |
| 0.9968 | 55 | 0.8% | |
| 0.9956 | 55 | 0.8% | |
| Other values (988) | 5879 | 90.5% |
| Value | Count | Frequency (%) | |
| 0.98711 | 1 | < 0.1% | |
| 0.98713 | 1 | < 0.1% | |
| 0.98722 | 1 | < 0.1% | |
| 0.9874 | 1 | < 0.1% | |
| 0.98742 | 2 | < 0.1% |
| Value | Count | Frequency (%) | |
| 1.03898 | 1 | < 0.1% | |
| 1.0103 | 2 | < 0.1% | |
| 1.00369 | 2 | < 0.1% | |
| 1.0032 | 1 | < 0.1% | |
| 1.00315 | 3 | < 0.1% |
pH
Real number (ℝ≥0)
| Distinct | 108 |
|---|---|
| Distinct (%) | 1.7% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 3.218500847 |
|---|---|
| Minimum | 2.72 |
| Maximum | 4.01 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 50.8 KiB |
Quantile statistics
| Minimum | 2.72 |
|---|---|
| 5-th percentile | 2.97 |
| Q1 | 3.11 |
| median | 3.21 |
| Q3 | 3.32 |
| 95-th percentile | 3.5 |
| Maximum | 4.01 |
| Range | 1.29 |
| Interquartile range (IQR) | 0.21 |
Descriptive statistics
| Standard deviation | 0.1607872021 |
|---|---|
| Coefficient of variation (CV) | 0.04995717254 |
| Kurtosis | 0.3676572674 |
| Mean | 3.218500847 |
| Median Absolute Deviation (MAD) | 0.11 |
| Skewness | 0.3868387981 |
| Sum | 20910.6 |
| Variance | 0.02585252436 |
| Monotocity | Not monotonic |
| Value | Count | Frequency (%) | |
| 3.16 | 200 | 3.1% | |
| 3.14 | 193 | 3.0% | |
| 3.22 | 185 | 2.8% | |
| 3.2 | 176 | 2.7% | |
| 3.19 | 170 | 2.6% | |
| 3.15 | 170 | 2.6% | |
| 3.18 | 168 | 2.6% | |
| 3.24 | 161 | 2.5% | |
| 3.12 | 154 | 2.4% | |
| 3.1 | 154 | 2.4% | |
| Other values (98) | 4766 | 73.4% |
| Value | Count | Frequency (%) | |
| 2.72 | 1 | < 0.1% | |
| 2.74 | 2 | < 0.1% | |
| 2.77 | 1 | < 0.1% | |
| 2.79 | 3 | < 0.1% | |
| 2.8 | 3 | < 0.1% |
| Value | Count | Frequency (%) | |
| 4.01 | 2 | < 0.1% | |
| 3.9 | 2 | < 0.1% | |
| 3.85 | 1 | < 0.1% | |
| 3.82 | 1 | < 0.1% | |
| 3.81 | 1 | < 0.1% |
alcohol
Real number (ℝ≥0)
| Distinct | 111 |
|---|---|
| Distinct (%) | 1.7% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 10.49180083 |
|---|---|
| Minimum | 8 |
| Maximum | 14.9 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 50.8 KiB |
Quantile statistics
| Minimum | 8 |
|---|---|
| 5-th percentile | 9 |
| Q1 | 9.5 |
| median | 10.3 |
| Q3 | 11.3 |
| 95-th percentile | 12.7 |
| Maximum | 14.9 |
| Range | 6.9 |
| Interquartile range (IQR) | 1.8 |
Descriptive statistics
| Standard deviation | 1.192711749 |
|---|---|
| Coefficient of variation (CV) | 0.1136803651 |
| Kurtosis | -0.5316873829 |
| Mean | 10.49180083 |
| Median Absolute Deviation (MAD) | 0.9 |
| Skewness | 0.5657177291 |
| Sum | 68165.23 |
| Variance | 1.422561316 |
| Monotocity | Not monotonic |
| Value | Count | Frequency (%) | |
| 9.5 | 367 | 5.6% | |
| 9.4 | 332 | 5.1% | |
| 9.2 | 271 | 4.2% | |
| 10 | 229 | 3.5% | |
| 10.5 | 227 | 3.5% | |
| 11 | 217 | 3.3% | |
| 9 | 215 | 3.3% | |
| 9.8 | 214 | 3.3% | |
| 10.4 | 194 | 3.0% | |
| 9.3 | 193 | 3.0% | |
| Other values (101) | 4038 | 62.2% |
| Value | Count | Frequency (%) | |
| 8 | 2 | < 0.1% | |
| 8.4 | 5 | 0.1% | |
| 8.5 | 10 | 0.2% | |
| 8.6 | 23 | 0.4% | |
| 8.7 | 80 | 1.2% |
| Value | Count | Frequency (%) | |
| 14.9 | 1 | < 0.1% | |
| 14.2 | 1 | < 0.1% | |
| 14.05 | 1 | < 0.1% | |
| 14 | 12 | 0.2% | |
| 13.9 | 3 | < 0.1% |
quality
Real number (ℝ≥0)
| Distinct | 7 |
|---|---|
| Distinct (%) | 0.1% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 5.818377713 |
|---|---|
| Minimum | 3 |
| Maximum | 9 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 50.8 KiB |
Quantile statistics
| Minimum | 3 |
|---|---|
| 5-th percentile | 5 |
| Q1 | 5 |
| median | 6 |
| Q3 | 6 |
| 95-th percentile | 7 |
| Maximum | 9 |
| Range | 6 |
| Interquartile range (IQR) | 1 |
Descriptive statistics
| Standard deviation | 0.8732552715 |
|---|---|
| Coefficient of variation (CV) | 0.1500856965 |
| Kurtosis | 0.2323222693 |
| Mean | 5.818377713 |
| Median Absolute Deviation (MAD) | 1 |
| Skewness | 0.1896226934 |
| Sum | 37802 |
| Variance | 0.7625747693 |
| Monotocity | Not monotonic |
| Value | Count | Frequency (%) | |
| 6 | 2836 | 43.7% | |
| 5 | 2138 | 32.9% | |
| 7 | 1079 | 16.6% | |
| 4 | 216 | 3.3% | |
| 8 | 193 | 3.0% | |
| 3 | 30 | 0.5% | |
| 9 | 5 | 0.1% |
| Value | Count | Frequency (%) | |
| 3 | 30 | 0.5% | |
| 4 | 216 | 3.3% | |
| 5 | 2138 | 32.9% | |
| 6 | 2836 | 43.7% | |
| 7 | 1079 | 16.6% |
| Value | Count | Frequency (%) | |
| 9 | 5 | 0.1% | |
| 8 | 193 | 3.0% | |
| 7 | 1079 | 16.6% | |
| 6 | 2836 | 43.7% | |
| 5 | 2138 | 32.9% |
quality_label
Categorical
| Distinct | 3 |
|---|---|
| Distinct (%) | < 0.1% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Memory size | 50.8 KiB |
| medium quality | |
|---|---|
| low quality | |
| high quality | 198 |
| Value | Count | Frequency (%) | |
| medium quality | 3915 | 60.3% | |
| low quality | 2384 | 36.7% | |
| high quality | 198 | 3.0% |
Unique
| Unique | 0 ? |
|---|---|
| Unique (%) | 0.0% |
Length
| Max length | 14 |
|---|---|
| Median length | 14 |
| Mean length | 12.83823303 |
| Min length | 11 |
Pearson's r
The Pearson's correlation coefficient (r) is a measure of linear correlation between two variables. It's value lies between -1 and +1, -1 indicating total negative linear correlation, 0 indicating no linear correlation and 1 indicating total positive linear correlation. Furthermore, r is invariant under separate changes in location and scale of the two variables, implying that for a linear function the angle to the x-axis does not affect r.To calculate r for two variables X and Y, one divides the covariance of X and Y by the product of their standard deviations.
Spearman's ρ
The Spearman's rank correlation coefficient (ρ) is a measure of monotonic correlation between two variables, and is therefore better in catching nonlinear monotonic correlations than Pearson's r. It's value lies between -1 and +1, -1 indicating total negative monotonic correlation, 0 indicating no monotonic correlation and 1 indicating total positive monotonic correlation.To calculate ρ for two variables X and Y, one divides the covariance of the rank variables of X and Y by the product of their standard deviations.
Kendall's τ
Similarly to Spearman's rank correlation coefficient, the Kendall rank correlation coefficient (τ) measures ordinal association between two variables. It's value lies between -1 and +1, -1 indicating total negative correlation, 0 indicating no correlation and 1 indicating total positive correlation.To calculate τ for two variables X and Y, one determines the number of concordant and discordant pairs of observations. τ is given by the number of concordant pairs minus the discordant pairs divided by the total number of pairs.
Phik (φk)
Phik (φk) is a new and practical correlation coefficient that works consistently between categorical, ordinal and interval variables, captures non-linear dependency and reverts to the Pearson correlation coefficient in case of a bivariate normal input distribution. There is extensive documentation available here.Cramér's V (φc)
Cramér's V is an association measure for nominal random variables. The coefficient ranges from 0 to 1, with 0 indicating independence and 1 indicating perfect association. The empirical estimators used for Cramér's V have been proved to be biased, even for large samples. We use a bias-corrected measure that has been proposed by Bergsma in 2013 that can be found here.First rows
| wine_type | citric acid | fixed acidity | volatile acidity | residual sugar | chlorides | free sulfur dioxide | total sulfur dioxide | density | pH | alcohol | quality | quality_label | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | red wine | 0.22 | 6.8 | 0.56 | 1.8 | 0.074 | 15.0 | 24.0 | 0.99438 | 3.40 | 11.2 | 6 | medium quality |
| 1 | white wine | 0.36 | 6.4 | 0.30 | 2.0 | 0.052 | 18.0 | 141.0 | 0.99273 | 3.38 | 10.5 | 6 | medium quality |
| 2 | white wine | 0.29 | 5.9 | 0.17 | 3.1 | 0.030 | 32.0 | 123.0 | 0.98913 | 3.41 | 13.7 | 7 | medium quality |
| 3 | white wine | 0.24 | 7.0 | 0.24 | 1.8 | 0.047 | 29.0 | 91.0 | 0.99251 | 3.30 | 9.9 | 6 | medium quality |
| 4 | white wine | 0.07 | 6.4 | 0.45 | 1.1 | 0.030 | 10.0 | 131.0 | 0.99050 | 2.97 | 10.8 | 5 | low quality |
| 5 | white wine | 0.26 | 6.0 | 0.20 | 6.8 | 0.049 | 22.0 | 93.0 | 0.99280 | 3.15 | 11.0 | 6 | medium quality |
| 6 | white wine | 0.49 | 6.8 | 0.22 | 0.9 | 0.052 | 26.0 | 128.0 | 0.99100 | 3.25 | 11.4 | 6 | medium quality |
| 7 | white wine | 0.61 | 7.1 | 0.43 | 11.8 | 0.045 | 54.0 | 155.0 | 0.99740 | 3.11 | 8.7 | 5 | low quality |
| 8 | white wine | 0.45 | 6.2 | 0.36 | 10.4 | 0.060 | 22.0 | 184.0 | 0.99711 | 3.31 | 9.8 | 6 | medium quality |
| 9 | red wine | 0.66 | 9.5 | 0.55 | 2.3 | 0.387 | 12.0 | 37.0 | 0.99820 | 3.17 | 9.6 | 5 | low quality |
Last rows
| wine_type | citric acid | fixed acidity | volatile acidity | residual sugar | chlorides | free sulfur dioxide | total sulfur dioxide | density | pH | alcohol | quality | quality_label | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 6487 | white wine | 0.16 | 6.5 | 0.36 | 1.3 | 0.054 | 11.0 | 107.0 | 0.99398 | 3.19 | 8.5 | 5 | low quality |
| 6488 | red wine | 0.44 | 8.5 | 0.34 | 1.7 | 0.079 | 6.0 | 12.0 | 0.99605 | 3.52 | 10.7 | 5 | low quality |
| 6489 | white wine | 0.30 | 6.8 | 0.32 | 1.0 | 0.049 | 22.0 | 113.0 | 0.99289 | 3.24 | 10.2 | 5 | low quality |
| 6490 | white wine | 0.28 | 7.0 | 0.14 | 1.3 | 0.026 | 10.0 | 56.0 | 0.99352 | 3.46 | 9.9 | 5 | low quality |
| 6491 | white wine | 0.37 | 6.9 | 0.28 | 9.1 | 0.037 | 16.0 | 76.0 | 0.99480 | 3.05 | 11.1 | 5 | low quality |
| 6492 | red wine | 0.45 | 12.7 | 0.59 | 2.3 | 0.082 | 11.0 | 22.0 | 1.00000 | 3.00 | 9.3 | 6 | medium quality |
| 6493 | white wine | 0.35 | 8.0 | 0.25 | 1.1 | 0.054 | 13.0 | 136.0 | 0.99366 | 3.08 | 9.5 | 5 | low quality |
| 6494 | red wine | 0.14 | 8.3 | 0.85 | 2.5 | 0.093 | 13.0 | 54.0 | 0.99724 | 3.36 | 10.1 | 5 | low quality |
| 6495 | red wine | 0.10 | 6.3 | 0.60 | 1.6 | 0.048 | 12.0 | 26.0 | 0.99306 | 3.55 | 12.1 | 5 | low quality |
| 6496 | white wine | 0.49 | 7.1 | 0.18 | 1.3 | 0.033 | 12.0 | 72.0 | 0.99072 | 3.05 | 11.3 | 7 | medium quality |
Most frequent
| wine_type | citric acid | fixed acidity | volatile acidity | residual sugar | chlorides | free sulfur dioxide | total sulfur dioxide | density | pH | alcohol | quality | quality_label | count | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 438 | white wine | 0.27 | 7.3 | 0.19 | 13.9 | 0.057 | 45.0 | 155.0 | 0.99807 | 2.94 | 8.8 | 8 | high quality | 8 |
| 473 | white wine | 0.28 | 7.0 | 0.15 | 14.7 | 0.051 | 29.0 | 149.0 | 0.99792 | 2.96 | 9.0 | 7 | medium quality | 8 |
| 549 | white wine | 0.30 | 6.8 | 0.18 | 12.8 | 0.062 | 19.0 | 171.0 | 0.99808 | 3.00 | 9.0 | 7 | medium quality | 7 |
| 565 | white wine | 0.30 | 7.4 | 0.16 | 13.7 | 0.056 | 33.0 | 168.0 | 0.99825 | 2.90 | 8.7 | 7 | medium quality | 7 |
| 439 | white wine | 0.27 | 7.4 | 0.16 | 15.5 | 0.050 | 25.0 | 135.0 | 0.99840 | 2.90 | 8.7 | 7 | medium quality | 6 |
| 566 | white wine | 0.30 | 7.4 | 0.19 | 12.8 | 0.053 | 48.5 | 229.0 | 0.99860 | 3.14 | 9.1 | 7 | medium quality | 6 |
| 567 | white wine | 0.30 | 7.6 | 0.20 | 14.2 | 0.056 | 53.0 | 212.5 | 0.99900 | 3.14 | 8.9 | 8 | high quality | 6 |
| 598 | white wine | 0.31 | 7.4 | 0.19 | 14.5 | 0.045 | 39.0 | 193.0 | 0.99860 | 3.10 | 9.2 | 6 | medium quality | 6 |
| 273 | white wine | 0.20 | 5.7 | 0.22 | 16.0 | 0.044 | 41.0 | 113.0 | 0.99862 | 3.22 | 8.9 | 6 | medium quality | 5 |
| 318 | white wine | 0.23 | 6.6 | 0.22 | 17.3 | 0.047 | 37.0 | 118.0 | 0.99906 | 3.08 | 8.8 | 6 | medium quality | 5 |